Since the beginning of winter, more and more patients are coming to see the doctor for itchy skin. Most of the patients do not have systemic diseases. The main cause of their itchy skin is dry skin. In recent years there is a significant trend of younger patients suffering from pruritus. Taiwanese singer Zhang Yu sings that love is all the fault of the moon, and I am talking about itchy skin is all the fault of cleaning. Cleanliness here refers specifically to improper skin care and cleansing. Wrong bathing causes dry skin, which in turn causes itchy skin. A few simple examples. Some elderly patients hospitalized with itchy skin on both lower legs were found to have dry and taut skin full of tiny cracks upon examination. The reason is that during the hospitalization of the old gentleman, the family found a caregiver to rub the legs of the old man with hot water every day, causing dry skin and causing itchy skin. There is a male patient who often accompanies customers to the bath sauna, often in the bath center rubbing, resulting in dry skin all over the body, there are many scratches left after the scabs, feeling tight and itchy skin all over the body. There are some women who are used to rubbing themselves with scrubbing towels on a regular basis, not rubbing for fear of not removing dead skin. In addition, some hard-working women, cooking at home, washing clothes, doing hygiene, often wash their hands and are not used to apply hand cream in time, afraid of hand cream dirty food and clothing. Their hands feel like a small file. Some older people are not accustomed to bathing with the bath, feel slippery after washing the body seems to be not clean, they still insist on using soap, soap or even sulfur soap. Some sports lovers of the young man to take two baths a day, young, a stack of trouser legs, shedding of dander like flour flying, extremely dry skin. Some ladies who love beauty wear tight-fitting chemical fiber underwear and pants, generating a lot of static electricity when they take off and put on, which aggravates the dry skin. Some southerners come to Beijing either with cracked lips or dry and itchy skin. Although they keep the same way of bathing, the environment has changed. Why does excessive cleaning and bathing cause dry skin? Because excessive cleaning and bathing destroy the sebum film on the surface of the skin. Sebum film is a translucent milky film covered on the skin surface, formed by sebum, sweat and epidermal cell secretions emulsified with each other, which has the function of moisturizing, preventing skin water loss, preventing external harmful substances from entering the skin and inhibiting the growth of bacteria on the skin surface, and its thickness and nature are affected by age, gender, health condition, environment and bathing. Thus, when a person lives in a certain area for a long time, the biggest factor that can affect the degree of dryness of his skin is bathing. The sebaceous film will be formed slowly after it is destroyed. However, if excessive frequent bathing, scrubbing, using too strong alkaline bathing products can easily cause the sebum film is difficult to restore. What is the right way to wash? There are no rules at all. The principle is not to cause excessive dryness of the skin, causing itching and rapid aging of the skin. It is recommended to reduce the number of baths in autumn and winter. The water temperature should not be too high when bathing and try to use less alkaline bathing products. People with dry skin can use bath products with certain moisturizing effect. Do not use towels or scrubbing towels to rub the bath. After bathing, gently dry with a towel and use the skin in a moist hydrated state to apply a suitable moisturizer or cream in time. People with allergy-prone skin can apply topical emollient products from medical skin care brands. If the skin is already dry and itchy or even chapped due to excessive cleaning, the first thing you should do is stop bathing immediately for a while. Intensify emollient treatment during this period. If the situation is not relieved, it is possible that sebum deficient eczema has occurred and this is something that requires prompt medical attention and proper medication in order to relieve the dryness and control the itching. I hope that everyone can figure out a bathing style that suits their needs to both cleanse and relax their skin and protect it to keep it healthy and beautiful.